Zarobai Munara, commonly known as Zarobi, is a historical village and Union Council of Swabi District in the Khyber Pakhtunkhwa province of Pakistan. It is located at 34°2′0N 72°34′0E with an altitude
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c28158d505f3dd105b3a13aeb84f4a7f21ffed62746c422ef54bf77ee9b87c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99e3760b-05e1-4ef8-be8b-ea83df5ecc23.json and https://artists.proofprofile.net/proofs/artist/99e3760b-05e1-4ef8-be8b-ea83df5ecc23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba306ad5c0b56b15cd27a6dd2194c4481b4b67b7a184138c13d930b73fc8cfa6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1600191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ec4b494af195f5d3efd6f9fbe65dc386bd75a364f255664db66fb38c36f825. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1600192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87aa3037a2339d5694d202086f7eaf89cfc72f636d699735203daaa3277daf78. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1600193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba306ad5c0b56b15cd27a6dd2194c4481b4b67b7a184138c13d930b73fc8cfa6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1600191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ec4b494af195f5d3efd6f9fbe65dc386bd75a364f255664db66fb38c36f825. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1600192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87aa3037a2339d5694d202086f7eaf89cfc72f636d699735203daaa3277daf78. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1600193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87aa3037a2339d5694d202086f7eaf89cfc72f636d699735203daaa3277daf78. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1600193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba306ad5c0b56b15cd27a6dd2194c4481b4b67b7a184138c13d930b73fc8cfa6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1600191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88998778b20ea959866ce9e45da39ab57ebee869568cb01adad59d574fa3bff2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1504775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf963469e8281b2550aeb8ba3a6f608c01e41b630f94adf490c9134af780888. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1504777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8261f5613a33860e6f15b43bb55b1b8c20e870a4b3f7ddf10b2704c018da9b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1504773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3210182cb1419e663727af829a0c4b40fc7b521c0443e12ac8be1a3041886713. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1504774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9148cb90c16e291c6bbef37a867b3d59e62c5bcb2982f7995520b6f58f1ead. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1504776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87aa3037a2339d5694d202086f7eaf89cfc72f636d699735203daaa3277daf78. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE37J1600193.